CN105758925B - A kind of fowl egg crack detection device based on piezoelectric material - Google Patents
A kind of fowl egg crack detection device based on piezoelectric material Download PDFInfo
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- CN105758925B CN105758925B CN201610115362.4A CN201610115362A CN105758925B CN 105758925 B CN105758925 B CN 105758925B CN 201610115362 A CN201610115362 A CN 201610115362A CN 105758925 B CN105758925 B CN 105758925B
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- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 title claims abstract description 16
- 235000013601 eggs Nutrition 0.000 claims abstract description 88
- 239000012528 membrane Substances 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 15
- 208000037656 Respiratory Sounds Diseases 0.000 claims abstract description 12
- 230000005693 optoelectronics Effects 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 210000000056 organ Anatomy 0.000 description 3
- 230000005622 photoelectricity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/60—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrostatic variables, e.g. electrographic flaw testing
- G01N27/61—Investigating the presence of flaws
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Abstract
The fowl egg crack detection device based on piezoelectric material that the invention discloses a kind of.Birds, beasts and eggs are conveyed by delivery roller, delivery roller is by motor drive, delivery roller front lower place is equipped with conveyer belt, it is connected and is conveyed by inclined support plate between delivery roller and conveyer belt, support plate upper face is equipped with piezoelectric membrane, support plate lower surface is equipped with cushion, the metal terminal of piezoelectric membrane output end is successively connected to computer through charge amplifier, data collector, metal terminal exports signal to charge amplifier, the amplified signal of charge amplifier reaches data collector, re-sends to computer disposal and show that fowl egg crack differentiates result.The present invention detects crackle birds, beasts and eggs using piezoelectric membrane and according to normal birds, beasts and eggs and the characteristic signal difference of crackle birds, beasts and eggs output, and apparatus structure is simple, and cost is relatively low, has broad prospects.
Description
Technical field
The present invention relates to detection of agricultural products device, especially a kind of fowl egg crack detection device based on piezoelectric material.
Background technique
With the fast development of aquaculture industry of China, the birds, beasts and eggs yield in China has occupied No. 1 in the world, almost occupies
The half of world's birds, beasts and eggs total output.Birds, beasts and eggs consumption figure has reached developed country's level per capita in China, and birds, beasts and eggs also have become national people
A kind of favorite nutrition of the people and energy source.Since China's birds, beasts and eggs volume of production and marketing is huge, just seem especially to the control of quality of poultry eggs
It is important.Bird egg is very thin and is easily broken, once broken, bacterium can invade and breed quickly, cause birds, beasts and eggs corruption and
It is rotten.Therefore the crack detection of birds, beasts and eggs is the important ring in egg production, operation and processing.
Particularly, the detection of fowl egg crack is particularly important in the manufacturing of lime-preserved egg, and raw material egg is if there is crackle, then
It is often possible to penetrate into excessive alkali in process, to influence the flavor of albumen, while bacterium may also be from crack
Intrusion causes product rotten.
In the circular flow from production to sale, birds, beasts and eggs damaging problem is generally existing, and harm not only makes damaged birds, beasts and eggs
Edible value is lost, while other birds, beasts and eggs can be polluted, causes cross contamination, causes even more serious loss.
In addition in the distinctive egg pickling industry in China, crackle will cause marinated failure, not only have lost raw material
Also waste the time of food processing manufacture.Therefore crackle loses caused by egg pickling industry or even is higher than fresh egg row
Industry.
Crack egg manually is rejected under light currently, relying primarily in domestic production.This method not only large labor intensity,
Production efficiency is low, and artificial breakage is big, and influence of the detection accuracy vulnerable to artificial attention, physical strength, experience and working attitude
And it cannot get basic assurance.Especially for tiny crackle, it is difficult to detected by artificial method.
Summary of the invention
The fowl egg crack detection device based on piezoelectric material that the purpose of the present invention is to provide a kind of, the device being capable of dynamics
Judge that birds, beasts and eggs with the presence or absence of crackle, fill up the blank of the prior art.
To achieve the above object, the technical solution adopted by the present invention is that:
The present invention includes piezoelectric membrane, cushion, the first optoelectronic switch, conveyer belt, delivery roller, metal terminal, charge
Amplifier, data collector, computer, motor, support plate and the second optoelectronic switch, birds, beasts and eggs are conveyed by delivery roller, transmission
Idler wheel is equipped with conveyer belt, is passed through inclined support between delivery roller and conveyer belt by motor drive, delivery roller front lower place
Plate connection conveying, support plate upper face are equipped with piezoelectric membrane, and support plate lower surface is equipped with cushion, and piezoelectric membrane is defeated
The metal terminal of outlet is successively connected to computer through charge amplifier, data collector, and metal terminal exports signal to electricity
Lotus amplifier, the amplified signal of charge amplifier reach data collector, re-send to computer disposal and obtain fowl egg crack
Differentiate result.
The conveying inlet side of the support plate is equipped with the first optoelectronic switch passed through for detecting birds, beasts and eggs, the pressure
The support plate side in conductive film conveying exit is equipped with the second optoelectronic switch passed through for detecting birds, beasts and eggs.
The birds, beasts and eggs at least roll a circle on piezoelectric membrane.
It is radian bonding pad between the support plate lower part and conveyer belt, cushion is overlying on radian bonding pad the birds, beasts and eggs that slow down
Rolling.Birds, beasts and eggs slow down under the action of cushion, realize that low speed enters conveyer belt by radian bonding pad.
The angle [alpha] that support plate is raised can be adjusted according to different needs, and the size of piezoelectric membrane can also basis
Different needs are adjusted.Preferably, the inclination angle alpha of the support plate is 10 °~30 °.
The piezoelectric membrane is the sensor that can convert pressure signal to electric signal.The effect of piezoelectric membrane is by fowl
The pressure signal that egg generates is converted into electrical signal, is exported by metal terminal.
The cushion is the sponge material cushion that surface has truncated conical shape protrusion.
Delivery roller uses plastic material, therefore will not cause to damage to birds, beasts and eggs.In the buffer area of device, using arc
Connection, cushion are had the sponge material cushion of truncated conical shape protrusion using surface, will not cause to damage to birds, beasts and eggs.Birds, beasts and eggs enter
It is quickly removed after conveyer belt, will not cause to damage because of collision between egg and egg.
Birds, beasts and eggs are individually sent to piezoelectric membrane by delivery roller, before birds, beasts and eggs are contacted with piezoelectric membrane, first group
Optoelectronic switch detects that birds, beasts and eggs pass through, and motor stops, delivery roller pause transmission.Birds, beasts and eggs at least roll one on piezoelectric membrane
Circle causes motor and restarts, delivery roller remains in operation until second group of optoelectronic switch detects that birds, beasts and eggs pass through.Birds, beasts and eggs are slow
Slow down under the action of punching pad, low speed enters conveyer belt by radian bonding pad to quickly be removed, and will not occur between birds, beasts and eggs
Collision.Piezoelectric membrane is exported signal to charge amplifier by metal terminal, and amplified signal reaches data collector, most
Output determines result under the processing of computer afterwards.
The beneficial effects of the present invention are:
Apparatus of the present invention can dynamically judge birds, beasts and eggs with the presence or absence of crackle, and detection is simple and effective, will not be to birds, beasts and eggs itself
It causes to damage.
The present invention compared to using acoustic microphones device detection mode, by other mechanical vibration noises interference compared with
It is small, and structure is simple, without additional knocking device, has boundless prospect.
Detailed description of the invention
Fig. 1 is the three-dimensional view of device；
Fig. 2 is the main view of Fig. 1 principal organ；
Fig. 3 is the top view of Fig. 1 principal organ；
Fig. 4 is the right view of Fig. 1 principal organ；
Fig. 5 is the top view of cushion.
Fig. 6 is the side view of cushion.
1 in figure: piezoelectric membrane, 2: cushion, 3: the first optoelectronic switches, 4: conveyer belt, 5: delivery roller, 6: metal end
Son, 7: charge amplifier, 8: data collector, 9: computer, 10: motor, 11: support plate, 12: the second optoelectronic switches.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1 to 4, the present invention includes piezoelectric membrane 1, cushion 2, the first optoelectronic switch 3, conveyer belt 4, transmission
Idler wheel 5, metal terminal 6, charge amplifier 7, data collector 8, computer 9, motor 10, support plate 11 and the second photoelectricity are opened
12 are closed, birds, beasts and eggs are conveyed by delivery roller 5, and delivery roller 5 is driven by motor 10, and 5 front lower place of delivery roller is equipped with conveyer belt 4,
It is connected and is conveyed by inclined support plate 11 between delivery roller 5 and conveyer belt 4, it is thin that 11 upper face of support plate is equipped with piezoelectricity
Film 1,11 lower surface of support plate are equipped with cushion 2, and the metal terminal 6 of 1 output end of piezoelectric membrane is successively through charge amplifier
7, data collector 8 is connected to computer 9, and metal terminal 6 exports signal to charge amplifier 7, after charge amplifier 7 amplifies
Signal reach data collector 8, re-send to computer 9 processing obtain fowl egg crack differentiate result.
As shown in Fig. 2, the conveying inlet side of support plate 11 is equipped with and opens for detecting the first photoelectricity that birds, beasts and eggs pass through
3 are closed, 11 side of support plate that the piezoelectric membrane 1 conveys exit is equipped with the second optoelectronic switch passed through for detecting birds, beasts and eggs
12。
It is radian bonding pad between 11 lower part of support plate and conveyer belt 4, cushion 2 is overlying on radian bonding pad the birds, beasts and eggs that slow down
Rolling, cushion be surface have truncated conical shape protrusion sponge material cushion, as shown in Figure 5 and Figure 6.Birds, beasts and eggs are in cushion
Slow down under the action of 2, realizes that low speed enters conveyer belt 4 by radian bonding pad.
The piezoelectric membrane used can use eTouch board for a kind of sensor that can convert pressure signal to electric signal
LCL2218 model piezoelectric membrane.
Charge amplifier uses UT4101 charge amplifier, and data collector is acquired using uT3408FRS-DY type data
Instrument.
Implementation process of the invention is as follows:
As shown in Figure 1, Figure 2, Figure 3, Figure 4, birds, beasts and eggs are placed on delivery roller 5, guarantee that birds, beasts and eggs are individually to be transmitted.
When birds, beasts and eggs detect that motor 10 stops working by first group of photoelectric door 3 after transmission after a period of time, delivery roller 5 stops
Only transmit.Birds, beasts and eggs can enter the detecting step of piezoelectric membrane 1 immediately, and gained signal is exported by metal terminal 6, and electric signal passes through
After charge amplifier 7, the processing of data collector 8, incoming computer 9 provides differentiation result.Then birds, beasts and eggs pass through second group of photoelectricity
Door 12 represents birds, beasts and eggs and has slipped away the detection zone of piezoelectric membrane 1, and into the decelerating area of cushion 2, birds, beasts and eggs reduce speed now,
And it is lossless by radian track, until being contacted with conveyer belt 4, removed rapidly in order to avoid being collided between birds, beasts and eggs.Meanwhile birds, beasts and eggs are logical
When crossing second group of photoelectric door 12, motor 10 is again triggered, and delivery roller 5 starts running, and birds, beasts and eggs are continued to forward pass
It send.Whole process is repeated continuously the dynamic detection, it can be achieved that fowl egg crack.
Piezoelectric membrane is exported signal to charge amplifier by metal terminal, and amplified signal reaches data acquisition
Device, finally output determines result under the processing of computer.
Piezoelectric membrane testing principle: when piezoelectric membrane stress, charge generation, electricity are had between film upper/lower electrode surface
Lotus output, which is that its institute is directive, strains the response that acts in polarization direction, the quantity of electric charge number and pressure size at just
Than.Piezoelectric membrane is to very pressure-sensitive, and when being longitudinally applied to the power of a very little, very big stress can be generated in transverse direction.Piezoelectricity
The charge that film generates can become voltage signal after charge amplifier convenient for analysis.
In embodiment, when intact birds, beasts and eggs and crackle birds, beasts and eggs roll across piezoelectric membrane respectively, it can be generated based on different stress
The different electric signal of feature judges that birds, beasts and eggs to be measured whether there is crackle using the output similarities and differences of electric signal, and using the 1st class once
Piezoelectricity formula calculates to describe the sensing of piezoelectric membrane.
Di=dijTij(i=1,2,3, j=1,2,3...6)
Wherein dijIt is piezoelectric constant, T represents stress intensity, DiFor corresponding dielectric displacement.
Thus compared to the detection method using acoustic microphones device, apparatus of the present invention are by other mechanical vibration noises
Interference is smaller, and structure is simple, without additional knocking device, has boundless prospect.
Above-described embodiment is used to illustrate the present invention, rather than limits the invention, in spirit of the invention and
In scope of protection of the claims, to any modifications and changes that the present invention makes, protection scope of the present invention is both fallen within.
Claims (6)
1. a kind of fowl egg crack detection device based on piezoelectric material, it is characterised in that: including piezoelectric membrane (1), cushion
(2), conveyer belt (4), delivery roller (5), charge amplifier (7), data collector (8), computer (9), motor (10) and
Support plate (11), birds, beasts and eggs are conveyed by delivery roller (5), and delivery roller (5) is driven by motor (10), and delivery roller (5) is front lower
Side is equipped with conveyer belt (4), connect conveying, support plate by inclined support plate (11) between delivery roller (5) and conveyer belt (4)
(11) upper face is equipped with piezoelectric membrane (1), and support plate (11) lower surface is equipped with cushion (2), and piezoelectric membrane (1) is defeated
The metal terminal (6) of outlet is successively connected to computer (9) through charge amplifier (7), data collector (8), metal terminal (6)
Signal is exported to charge amplifier (17), charge amplifier (17) amplified signal reaches data collector (8), retransmits
Show that fowl egg crack differentiates result to computer (9) processing；
The birds, beasts and eggs at least roll a circle on piezoelectric membrane (1)；
When intact birds, beasts and eggs and crackle birds, beasts and eggs roll across piezoelectric membrane respectively, the different telecommunications of feature can be generated based on different stress
Number, judge birds, beasts and eggs to be measured with the presence or absence of crackle using the output similarities and differences of electric signal.
2. a kind of fowl egg crack detection device based on piezoelectric material according to claim 1, it is characterised in that: the branch
The conveying inlet side of fagging (11) is equipped with the first optoelectronic switch (3) passed through for detecting birds, beasts and eggs, the piezoelectric membrane
(1) support plate (11) side for conveying exit is equipped with the second optoelectronic switch (12) passed through for detecting birds, beasts and eggs.
3. a kind of fowl egg crack detection device based on piezoelectric material according to claim 1, it is characterised in that: the branch
It is radian bonding pad between fagging (11) lower part and conveyer belt (4), cushion (2) is overlying on the rolling of deceleration birds, beasts and eggs on radian bonding pad
Dynamic, birds, beasts and eggs slow down under the action of cushion (2), realize that low speed enters conveyer belt (4) by radian bonding pad.
4. a kind of fowl egg crack detection device based on piezoelectric material according to claim 1, it is characterised in that: the branch
The inclination angle alpha of fagging (11) is 10 °~30 °.
5. a kind of fowl egg crack detection device based on piezoelectric material according to claim 1, it is characterised in that: described
Piezoelectric membrane (1) is the sensor that can convert pressure signal to electric signal.
6. a kind of fowl egg crack detection device based on piezoelectric material according to claim 1, it is characterised in that: described
Cushion (2) is the sponge material cushion that surface has truncated conical shape protrusion.
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| CN201610115362.4A CN105758925B (en) | 2016-03-01 | 2016-03-01 | A kind of fowl egg crack detection device based on piezoelectric material |
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| CN201610115362.4A CN105758925B (en) | 2016-03-01 | 2016-03-01 | A kind of fowl egg crack detection device based on piezoelectric material |
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| CN105758925A CN105758925A (en) | 2016-07-13 |
| CN105758925B true CN105758925B (en) | 2019-01-29 |
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| CN110595686A (en) * | 2019-09-29 | 2019-12-20 | 深圳和而泰家居在线网络科技有限公司 | Method and equipment for testing sensitivity of piezoelectric film |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207238A (en) * | 2013-04-02 | 2013-07-17 | 浙江大学 | Acoustic detection method and device for egg cracks based on continuous vibration sound production |
| CN104977355A (en) * | 2015-07-17 | 2015-10-14 | 浙江大学 | Dynamic poultry egg shell crack detection system and dynamic poultry egg shell crack detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101553777B1 (en) * | 2014-07-31 | 2015-09-16 | 윤택진 | crack egg extractor device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207238A (en) * | 2013-04-02 | 2013-07-17 | 浙江大学 | Acoustic detection method and device for egg cracks based on continuous vibration sound production |
| CN104977355A (en) * | 2015-07-17 | 2015-10-14 | 浙江大学 | Dynamic poultry egg shell crack detection system and dynamic poultry egg shell crack detection method |
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